A millimeter/sub-millimeter-wave spectroscopic study of the FeCl radical (X 6Δi)

M. D. Allen, B. Z. Li, L. M. Ziurys

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24 Scopus citations


Pure rotational spectroscopy of the FeCl radical (X 6Δi) has been carried out using millimeter/sub-millimeter direct absorption techniques. The species was created by the reaction of chlorine with iron vapor. All six spin - orbit components were observed in the majority of the twenty-one rotational transitions recorded. Chlorine hyperfine structure was resolved in the Ω = 9/2 and 7/2 components, and lambda-type doubling observed in the Ω = 3/2, 1/2, and - 1/2 ladders. The data were analyzed with a 6Δ Hamiltonian, and rotational, fine structure, lambda-doubling, and hyperfine parameters determined. The hyperfine and lambda-doubling interactions in FeCl appear to be different from those in the FeF radical.

Original languageEnglish (US)
Pages (from-to)517-526
Number of pages10
JournalChemical Physics Letters
Issue number5-6
StatePublished - May 30 1997

ASJC Scopus subject areas

  • General Physics and Astronomy
  • Physical and Theoretical Chemistry


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